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add two flags to install-rootfs, --just-choose and --skip-sha

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--just-choose will print information about which partition would be
chosen to install a rootfs image.

--skip-sha will avoid checking the sha256 sum of the image file. This
is mainly meant for use by the installer since the sum has already
been confirmed
This commit is contained in:
Bruce Leidl 2019-01-15 16:56:03 -05:00
parent 851da8a98c
commit 4f603cf4d4
1 changed files with 48 additions and 8 deletions
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46
citadel-image/src/main.rs
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@ -46,8 +46,14 @@ fn main() {
.subcommand(SubCommand::with_name("install-rootfs")
.about("Install rootfs image file to a partition")
.arg(Arg::with_name("choose")
.long("just-choose")
.help("Don't install anything, just show which partition would be chosen"))
.arg(Arg::with_name("skip-sha")
.long("skip-sha")
.help("Skip verification of header sha256 value"))
.arg(Arg::with_name("path")
.required(true)
.required_unless("choose")
.help("Path to image file")))
.subcommand(SubCommand::with_name("genkeys")
@ -148,14 +154,22 @@ fn load_image(arg_matches: &ArgMatches) -> Result<ResourceImage> {
}
fn install_rootfs(arg_matches: &ArgMatches) -> Result<()> {
if arg_matches.is_present("choose") {
let _ = choose_install_partition(true)?;
return Ok(())
}
let img = load_image(arg_matches)?;
img.header().verify_signature()?;
if !arg_matches.is_present("skip-sha") {
let shasum = img.generate_shasum()?;
if shasum != img.metainfo().shasum() {
bail!("image file does not have expected sha256 value");
}
}
let partition = choose_install_partition()?;
let partition = choose_install_partition(true)?;
img.write_to_partition(&partition)?;
Ok(())
}
@ -183,15 +197,41 @@ fn decompress(arg_matches: &ArgMatches) -> Result<()> {
Ok(())
}
fn choose_install_partition() -> Result<Partition> {
fn bool_to_yesno(val: bool) -> &'static str {
if val {
"YES"
} else {
" NO"
}
}
fn choose_install_partition(verbose: bool) -> Result<Partition> {
let partitions = Partition::rootfs_partitions()?;
if verbose {
for p in &partitions {
info!("Partition: {} (Mounted: {}) (Empty: {})",
p.path().display(),
bool_to_yesno(p.is_mounted()),
bool_to_yesno(!p.is_initialized()));
}
}
for p in &partitions {
if !p.is_mounted() && !p.is_initialized() {
if verbose {
info!("Choosing {} because it is empty and not mounted", p.path().display());
}
return Ok(p.clone())
}
}
for p in &partitions {
if !p.is_mounted() {
if verbose {
info!("Choosing {} because it is not mounted", p.path().display());
info!("Header metainfo:");
print!("{}",String::from_utf8(p.header().metainfo_bytes())?);
}
return Ok(p.clone())
}
}